/*
 * RED5 Open Source Media Server - https://github.com/Red5/
 * 
 * Copyright 2006-2016 by respective authors (see below). All rights reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.red5.server.stream;

import org.red5.server.api.event.IEvent;

/**
 * Source for streams
 */
public interface IStreamSource {
    /**
     * Is there something more to stream?
     * 
     * @return <pre>
     * true
     * </pre>
     * 
     *         if there's streamable data,
     * 
     *         <pre>
     * false
     * </pre>
     * 
     *         otherwise
     */
    public abstract boolean hasMore();

    /**
     * Double ended queue of event objects
     * 
     * @return Event from queue
     */
    public abstract IEvent dequeue();

    /**
     * Close stream source
     */
    public abstract void close();

}
